CIRCUIT CONSTANT VARIABLE CIRCUIT

• Main Authors: TAMURA HIDEKI, KIDO MARIKO, INAKAGATA SATORU, NAKAZAWA KAZUSHI, IWABORI YUTAKA
• Format: Patent
• Language: English; Japanese
• Published: 16.07.2015
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; BASIC ELECTRONIC CIRCUITRY; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS

PROBLEM TO BE SOLVED: To provide a circuit constant variable circuit capable of varying circuit constant with a simple circuit structure.SOLUTION: A circuit constant variable circuit 1 includes: a capacitor C1 and a first bidirectional switch Q1 which are connected to each other in series; and a second bidirectional switch Q2 which is connected to the series circuit in parallel. An AC current is supplied across the terminals P1 and P2 of the parallel circuit. A control circuit 10 controls the first and second bidirectional switches Q1 and Q2 to control accumulated amount of electric charge on the capacitor C1 to thereby vary apparent electrostatic capacitance (circuit constant) of the capacitor C1. 【課題】簡単な回路構成で回路定数を可変することができる回路定数可変回路を提供する。【解決手段】回路定数可変回路１は、コンデンサＣ１と第１双方向スイッチＱ１が直列に接続され、その直列回路に対して第２双方向スイッチＱ２が並列に接続されている。その並列回路の両端子Ｐ１，Ｐ２間には、交流電流が供給されるようになっている。制御回路１０は、第１及び第２双方向スイッチＱ１，Ｑ２を制御することによって、コンデンサＣ１の電荷の蓄積量を制御して、コンデンサＣ１の見かけ上の静電容量（回路定数）を可変する。【選択図】図１